I know there was a thread going around about duped spectral kittens/cubs that are lvl 6. I just stumbled across one on e-bay and was wondering what if anything had transpired with regards to the duplicate pets and WOW's stance.

A level 6 cub on ebay? You mean they are trying to sell an ingame pet that's lvl 6? If that's the case, be aware that selling ingame items for RL cash is against ToS, even though selling the unscratched loot card is perfectly OK.

As far as lvl 6 cubs, it seems pretty likely that they're duped. Bliz has not stated any position on the cubs, and they've only very obliquely admitted that they're aware of it. In the past, they have never taken these sorts of suspicious items away from end buyers (except in extremely rare circumstances where people bought many many copies). There is also no unique identifier associated with pets in the pet journal or in cages (at least that is visible to the client), so it's questionable whether Bliz could actually identify which cubs were dupes if they wanted to. So there's very little risk associated with buying a 'duped' cub versus a 'real' one. The main risk is buying an ingame item on eBay, and also the risk that cubs will continue to decline in value. They're currently in the 60-70k range on high pop servers and haven't dropped a lot in the last 2 weeks or so. But since we have no information on whether the duping has been addressed, there's absolutely no guarantee that they'll stay at that price. The only good bet is that they won't go back up.

Yeah, definitely is a Blizzard no-no to buy ingame items for real cash on ebay. they have said that buying real cards, with real money is fine, or buying the ingame item with ingame gold is fine.

I actually got a temp ban from another website for even mentioning the ´dupe´. Obviously it is a dupe, it is only affecting one single TCG pet and the dupe requires them to battle with the pet one time ( why they are all lvl 6). People were actually convinced that these were coming from compromised accounts, which makes no sense considering the very specific nature of it being a single TCG pet and lvl 6. If they were from compromised accounts, then the spread of TCG pets would be more random.